How to change the IP Address on a Netgear PS121 router

This page shows how to change the LAN IP Address on the Netgear PS121 router.

Other Netgear PS121 Guides

What is the LAN IP Address of a Router

The LAN IP Address of a router is also known as its internal IP address. It is also the IP address that you connect to when you want to configure your router. It is only useful from inside your network and has no use from the Internet side.

Routers have 2 IP addresses: an internal ip address and an external ip address. The external IP address is assigned to you by your Internet Service Provider, or ISP, and is generally not something that you can change. The internal IP address is set to a default value at the factory but can be changed if you want.

Common internal IP addresses for routers are:

It is generally a good idea to make the last number of your router's internal IP address a '1', as in or This is not necessary, but many people do it and it makes it a bit easier to remember which IP address is assigned to your router. If you want to change the internal IP address of your router, this guide shows you how.

Login To The Netgear PS121

To get started configuring the Netgear PS121 LAN page you need to login to your router. If you are already logged in you can skip this step.

To login to the Netgear PS121, follow our Netgear PS121 Login Guide.

Change the LAN IP Address on a Netgear PS121

If you followed our login guide above then you should see this screen.

Once you have logged into the Netgear PS121 you will see the Server Status page. When you have decided to change your Router IP Address, the address you see from inside your network, click the choice on the left labeled TCP/IP.

Configure the LAN section of your Netgear PS121

On this new page, place your cursor in the first of four boxes marked IP Address. Enter your new address in these boxes. One good choice for an address is

When making these changes to your Router, make sure to leave the Subnet Mask at

The DHCP Server bullet should be marked Enable.

When all this is done, click the Save button.

Possible Problems when Changing your LAN IP Address

When you change your LAN IP Address you are making a fundamental change to how your network functions and all computers on your network will be affected. You will lose your Internet connection when you apply these changes. Your router may reboot and require a couple of minutes to start responding again.

Also note that some computers may need to be rebooted after you make this change before they can talk to the router or on the Internet again.

Other Netgear PS121 Info

Don't forget about our other Netgear PS121 info that you might be interested in.

Rachel Bauer

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Rachel Bauer is an owner and primary author for She is available on Google+ and you can find more of her articles in the Networking section of our site.